Summary

Dr. Thomas Oconnor is an oncologist and internal medicine physician with 25 years of experience treating patients with cancer and complex medical conditions. He earned his medical degree from the Jacobs School of Medicine & Biomedical Sciences at the University of Buffalo. Dr. Oconnor specializes in caring for patients with various forms of cancer while also providing comprehensive internal medicine care. He is fluent in both English and Spanish.

Dr. Oconnor practices at several leading medical centers throughout Massachusetts, including Massachusetts General Hospital, Brigham and Women's Hospital, and South Shore Hospital. His oncology expertise focuses on treating liver cancer, bone cancer, and metastatic cancers that have spread to other parts of the body. He provides care at multiple locations in South Weymouth, Weymouth, and Boston. Patients have given him an average rating of 3.6 out of 5 stars on Vitals.

Overview based on verified provider data

Quick Facts

  • 3.6
  • 25 years of experience
  • speaks English, Spanish
  • Jacobs School Of Medicine & Biomedical Sciences At The Univ Of Buffalo
  • 1 written review
  • 2 specialties
  • 16 areas of expertise
  • 2 board certifications
  • 6 hospital affiliations
  • 6 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Thomas Patrick Oconnor has 6 locations

Dana Farber Brigham And Womens Cancer Center At South Shore

101 Columbian StSouth Weymouth, MA 02190
Mon7:00 am - 5:00 pm
Tue7:00 am - 5:00 pm
Wed7:00 am - 5:00 pm
Thu7:00 am - 5:00 pm
Fri7:00 am - 5:00 pm
SatClosed
SunClosed

Dana Farber Brigham And Womens Cancer Center At South Shore

101 Columbian St Fl 2Weymouth, MA 02190
Mon7:00 am - 5:00 pm
Tue7:00 am - 5:00 pm
Wed7:00 am - 5:00 pm
Thu7:00 am - 5:00 pm
Fri7:00 am - 5:00 pm
SatClosed
SunClosed

South Shore Hospital

55 Fogg RdSouth Weymouth, MA 02190

Brigham And Womens Hospital

75 Francis StBoston, MA 02115

Compare with Similar Doctors

Dr. Thomas Patrick Oconnor JR., MD
Marc Tobi Salomon
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Molly Rachel Schwenn
Dr. Thomas Patrick Oconnor JR., MDMarc Tobi SalomonPaula Andrea Valencia ReyMolly Rachel Schwenn
OncologyDiagnostic RadiologyInfectious DiseasePediatrics
Accepts New Patients
3.6 
25 Years of Experience 9 Years of Experience 21 Years of Experience 49 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Speaks English, Spanish
South Weymouth , MABoston , MABOSTON , MABoston , MA
Med School: Jacobs School Of Medicine & Biomedical Sciences At The Univ Of Buffalo Med School: Rutgers New Jersey Medical School Med School: Universidad De Antioquia Facultad De Medicina Med School: Stanford University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Thomas Patrick Oconnor

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Thomas Patrick Oconnor has the following 2 specialties

Specialty Expertise

Dr. Thomas Patrick Oconnor has the following 16 areas of expertise

  • Acute Myeloid Leukemia
  • Anemia
  • Bone Marrow Transplant
  • Cancer
  • Chemotherapy
  • Chronic Myeloid Leukemia
  • Chronic Myelomonocytic Leukemia
  • Deep Vein Thrombosis
  • Hepatitis C
  • Hodgkin's Lymphoma
  • Internal Medicine
  • Leukemia
  • Lymphoma
  • Myelofibrosis
  • Myeloma
  • Myeloproliferative Disorders

Certifications, License, & Education

25 Years Experience

Dr. Thomas Patrick Oconnor holds an expired medical license in the state of Massachusetts.

Medical License

Medical Doctor with an expired medical license in the state of Massachusetts that expired in 2026.

Education & Training

Medical School

Graduated from Jacobs School Of Medicine & Biomedical Sciences At The Univ Of Buffalo in 2001.

NPI Number

Dr. Oconnor's NPI number is 1669507141.

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Frequently Asked Questions

How can I make an appointment with Dr. Thomas Oconnor?
You can find contact information for Dr. Thomas Oconnor here on Vitals.
Is Dr. Thomas Oconnor accepting new patients?
Dr. Thomas Oconnor has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Which hospitals is Dr. Thomas Oconnor affiliated with?
Dr. Thomas Oconnor is affiliated with Massachusetts General Hospital, Brigham And Womens Faulkner Hospital, Brigham And Womens Hospital, Beth Israel Deaconess Medical Center West Campus, South Shore Hospital, and BETH ISRAEL DEACONESS MEDICAL CENTER.
Does Dr. Thomas Oconnor accept virtual/telehealth appointments?
Dr. Thomas Oconnor has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Thomas Oconnor accept my insurance?
You can see the insurance plans that Dr. Thomas Oconnor accepts on their Vitals profile.

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